I'm an avid Comixology reader/user on the iPad. Love the service, have gladly spent hundreds, if not thousands, of dollars on titles. However, what's the story behind Dark Horse stuff not being available? Is there some history between the two companies?

I don't know why so many people hate on Dark Horse and their digital store. IMHO its not bad at all. It downloads faster then comixology and does a "flat" presentation of the files. The graphics quality is likely a bit less then what is on the CMX-HD files but they are perfectly presentable on a Retina iPad.

For android I think the app is a bit worse as the download process sucks pretty bad. But to be fair comixology on android is not as good as well.

Darkhorse does good sales on their site and I buy a lot from them as well. I really have no issues with them at all. As to why they run their own, I think it comes down to control.

Dark Horse has basically said they want to be able to control everything. Prices, distribution of money to the creators,content, etc and getting in bed with Comixology inhibits that. Obviously its not a bad thing to want that to remain in that position but like you, other people aren't seeing the content so they kind of forget about it and don't even look for the Dark Horse app (which could use some fixing) so they're loosing a lot of profit. I love Dark Horse and I wish they would work it out.

Which is unfortunate because I'm one of those newer consumers who only buys single issues through Comixology. Not being on that app basically ensures that I'm not reading anything published by Dark Horse. Gave up trying when I tried to read their licensed Mass Effect books through their app and couldn't get the purchase to work.